Endocrine Pharm Flashcards
Name the rapid acting insulin preparations
Lispro, Aspart, Glulisine
MOA of insulin
Bind insulin receptor (tyrosine kinase activity). Liver: Increase glucose stored as glycogen. Muscle: Increase glycogen, protein synthesis. Fat: Increase TG storage. Cell membrane: Increase K+ uptake
Adverse effects of insulin
Hypoglycemia, lipodystrophy, rare hypersensitivity reactions
Short acting insulin
Regular insulin
Intermediate acting insulin
NPH
Long acting insulin
Detemir, glargine
MOA of Amylin analogs
Decrease glucagon release, decrease gastric acid emptying, increase satiety
Name the Amylin analog
Pramlintide
MOA of GLP-1 analogs
Decrease glucagon release, decrease gastric emptying, increase glucose dependent insulin release, increase satiety
Name the GLP-1 analogs
Exenatide, liragtutide
What are adverse effects of GLP-1 analogs?
Nausea, vomiting, pancreatitis. Promote weight loss (often desired)
MOA of Biguanides
Inhibit hepatic gluconeogenesis and the action of glucagon, by inhibiting mGPD. Increase glycolysis, peripheral glucose uptake (increase insulin sensitivity)
What category of drugs is Metformin?
Biguanide
Adverse effects of Metformin?
GI upset, lactic acidosis (use with caution in renal insufficiency), B12 deficiency. Promote weight loss (often desired).
What are the 1st generation sulfonylureas?
Chlorpropamide, tolbutamide
What are the 2nd generation sulfonylureas?
Glimepiride, glipizide, gylburide
MOA of sulfonylureas
Close K+ channel in pancreatic beta cell membrane, leads to cell depolarizing, insulin release via increase Ca2+ influx
Name the Meglitinides
Nateglinide, repaglinide
MOA of meglitinides
Close K+ channel in pancreatic beta cell membrane, leads to cell depolarizing, insulin release via increase Ca2+ influx (binding site differs from sulfonylureas)
Name the DPP-4 inhibitors
Linagliptin, saxagliptin, sitagliptin
MOA of DPP-4 inhibitors
Inhibit DPP-4 enzyme that deactivates GLP-1. Decrease glucagon release, gastric emptying. Increase glucose-dependent insulin release, satiety.
Side effects of DPP-4 inhibitors
Mild urinary or respiratory infections, weight neutral
Name the Glitazones/thiazolidinediones
Pioglitazone, rosiglitazone
MOA of glitazones/thiazolidinediones
Binds to PPAR-gamma nuclear transcription regulator, which increases insulin sensitivity and levels of adiponectin, leads to regulation of glucose metabolism and fatty acid storage
Adverse effects of glitazones/thiazolidinediones
Weight gain, edema, HF, increased risk of fractures. Delated onset of action (several weeks). Not used in HF pts
Name the SGLT2 inhibitors
Canagliflozin, dapagliflozin, empagliflozin
MOA of SGLT2 inhibitors
Block reabsorption of glucose in proximal convoluted tubule
Adverse effects of SGLT2 inhibitors
Glucosuria, UTIs, vaginal yeast infections, hyperkalemia, dehydration, weight loss
Name the alpha-glucosidase inhibitors
Acarbose, miglitol
MOA of alpha-glucosidase inhibitors
Inhibit intestinal brush border alpha-glucosidases, leads to delayed carbohydrate hydrolysis and glucose absorption, which leads to decreased postprandial hyperglycemia
Name the Thioamides
Propylthiouricil, methimazole
MOA of Thioamides
Block thyroid peroxidase, inhibiting the oxidation of iodine and the organification and coupling of iodine, leading to inhibition of thyroid hormone synthesis.
PTU also blocks 5’-deiodinase and leads to decreased peripheral converstion of T4 to T3.
Clinical use of Thioamides
Hyperthyroidism
Adverse effects of Thioamides
Skin rash, agranulocytosis (rare), aplastic anemia, hepatotoxicity.
What can Methimazole cause if taken during pregnancy?
Aplasia cutis
Clinical use of ADH antagonists
SIADH, block action of ADH at V2-receptor
Clinical use of Desmopressin
Central (not nephrogenic) DI, von Willebrand disease, sleep enuresis, hemophilia A
GH clinical uses
GH deficiency, Turner syndrome
Oxytocin clinical uses
Labor induction, milk letdown; controls uterine hemorrhage
Somatostatin (octreotide) clinical uses
Acromegaly, carcinoid syndrome, gastrinoma, glucagonoma, esophageal varices
MOA of Demeclocycline
ADH antagonist
Clinical use of Demeclocycline
SIADH
MOA of Fludrocortisone
Synthetic analog of aldosterone with little glucocorticoid effects
Clinical use of Fludrocortisone
Mineralocorticoid replacement in primary adrenal insufficiency
MOA of Cinacalcet
Sensitizes Ca2+-sensing receptors (CaSR) in parathyroid gland to circulating Ca2+, leading to decreased PTH
Clinical use of Cinacalcet
Refractory hypercalcemia in primary hyperparathyroidism, secondary hyperparathyroidism, or parathyroid carcinoma
MOA of Sevelamer
Nonabsorable phosphate binder that prevents phosphate absorption from the GI tract
Clinical use of Sevelamer
Hyperphosphatemia in CKD